Headrest for seats



FIG. 1 is a perspective front view of a headrest for seats;

FIG. 2 is a perspective rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a top view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a headrest for seats, as shown and described. 